Friends, we have to support these kinds of efforts. This channel is so informative and beautifully illustrated. I hope you all are learning as much as I do. Thanks!
OUSTANDING!! I am IMPRESSED. I've viewed LOTS OF RUclips tutorials over the years (literally hundreds),... and you are LIGHT YEARS AHEAD OF ALL OF THE OTHERS! (in my humble opinion) You speak "ENGLISH" and you are CLEARLY VERY KNOWLEDGEABLE AND VERY THOROUGH! Thank you sir! YOU ARE GIFT TO IT PROFESSIONALS!
Thank you for the kind words, we are working hard on doing a respectable job of presentation and at the same time engaging our viewers. We do make mistakes and our great viewers call us out, and we want that feedback. We hope you will come back for more!
As an Ops technician at a data center in Maryland I've got to say this was hands down the best video I've ever seen on the subject. Everything you mentioned and showed are exactly what I see and work with everyday.
This is by far one of the most underrated IT videos of all time. Incredible. If there was a tip button, I literally would've sent money. Thank you so much for sharing!!!
AMAZING video!! Started in IT in '97 and in 30mins you succinctly and eloquently detailed what took me well over a decade to learn. Truly excellent work!!
I work for a major logistics company for Google. I see fiber cables, optical modules, network switches, etc. all day long. It was only after watching this video did I even begin to understand what this material was, how it is implemented, and what I had to understand if I wanted to work in the nearby Google data center. Thank you!
I'm going to say what most of the comments are saying. I've learned more in this video than I have researching google and blog posts for years. Fiber is one of those dark arts because of all the different types. But this video put it in a super easy format and explained everything. All in 30 minutes. Thank you.
Nonya, thanks for the comment. This is a subject that is difficult to find good information unless you work in this industry. We are working on bringing this information and understanding to more folks.
Overall this is a really informative video. Great for getting someone up to speed with fiber. One thing though, there is a difference between path loss and return loss. Path loss (including intrinsic losses) is the attenuation of the signal down the path between the transmitter and receiver. Return loss is the value of how much light is reflected back to the source. They are very different things. Great work. I look forward to watching more of your videos.
Thanks for publishing this video. I hadn’t realised how far networking has advanced since I did a final year undergrad dissertation on ATM switches about 25 years ago! I feel all caught up now 😊 👍
rk: there is much more to learn in working for data centers, storage fabric, TOR systems, VLANs, server management, routing within and without the data center, Software Define Networks, virtualization on Windows, Linux and VMware, SANs, cluster systems, WAN interfaces, and so much more! Thanks for watching!
Nice video Sir. One of my tutors gave me a downloaded version of this video 6 days ago. I just had to find you! This page is quite an asset. Kudos Sir.
Small correction: a plenum is an air _circulation_ space. If air doesn't normally flow through it, it's not a plenum. The drop ceiling in most commercial structures is a plenum as it's the return path for HVAC systems. In residential settings, most setups have ducted returns. (In my parents house, the space under the stairs is a plenum as the return duct is open to the back of the stairs, vs. ducts run all the way to the registers. In my house, there are two large ducts leading to filtered registers, one in a wall, the other in a ceiling.) Note: I had this very conversation with engineers, architects, and city inspectors w.r.t. a computer room ("data center"). We had to have revised plans _explicitly_ stating the area above the ceiling was NOT a plenum. Yes, HVAC ducts pass through the space, but there is no air moving in the space; the room is otherwise vapor sealed. (this was but one of the many nits picked with the city.)
Amazing video! This has more information in single 30 videos, that dozen other videos and articles I saw before. Combined. Good job. This is the goto video on fiber optics. Very comprehensive.
I watched today other video of yours, when i was searching for fiber explanations i found your video, and immediately i thought: ohh this is going to be very detailed and explained. Aaaaand it was ;) Thank you so much for such great videos ! Thank god there are still people like you and make proper explanation rather than : 'fc , connectors in 1 minutes.. ' ;)
Finally a video that tells me what I needed to know! What fiber to pre-wire my new house with?... Looks like OM3 should work fine! I won't have anything even close to 100M.
actually you would be well advised to use OS2 single mode cabling. That will allow you to move the signal from your FTTH connection to anywhere in the house and the extra cost of transceivers is trivial. Also OS2 is now cheaper than OM cabling of any grade. That said, cat 6a is fine for housing. Just put in empty tubing so you can pull the fiber cable if you should ever need to do so.
Very good video and I will watch it again for all that information to sink in, found your fire regulations interesting as we don't have the same here in NZ apart from the marine industry.
Work work with number 5 ESS electronic switching systems that incorporated fiber optics for the very first time in communication that's the Baseline for the internet that's how it all started AT&T Bell Labs is responsible for all of that great company great career God Bless America
Central Offices are making a come back as they reinvent how to provide edge services to the mega-internet services. The CO was the heart of the telecommunication world for years.
Fantastic video! This video brings everything about fiber and LAN technologies together in an interesting and easy to understand method. I can't tell you how much I enjoyed the video. However, you misspoke at 6:06; 850nm is not a lower frequency, it is a lower wavelength but higher frequency than say 1300nm.
Regarding 40 Gigabit in the chart at 5:03, there is one additional option, beyond the singlemode and MTP/MPO options: 40GBASE-SR-BD (or 40GBASE-SR-BiDi, short for Bi-Directional) uses the same kind of two-strand multimode cable used with 10GBASE-SR, but gives you 40 Gigabit Ethernet. With 40GBASE-SR4, you have an MTP/MPO-12 connector carrying 8 10Gbps wavelengths (four in each direction). With the 40GBASE-SR-BD, the transceiver combines the 10Gbps "lanes" into two 20Gbps lanes, sending each out over the two fiber strands. That's where the bi-directional part comes in: In each strand, you have 20Gbps wavelengths traveling in each direction. Although the length limitations for 40GBASE-SR-BD are lower than those of 10GBASE-SR, this is a great way to upgrade from 10 Gigabit to 40 Gigabit without needing to replace fiber. That's probably why, if you order a 40GBASE-SR-BD transceiver today, it'll take several months to arrive! See more details at community.fs.com/blog/bi-directional-qsfp-40gbe-over-lc-duplex-multimode-fiber.html
This was state of the art 4 years ago, things have only gotten faster and better since then.. 8 color all the way up to 64 color stacking and 30 mile hops on fiber distribution are an every day thing.. Not sure what the distance is on the main trunks and backbones but it has to be huge because there are trans oceanic fiber cables now.. In 5 years I will upgrade my home network to fiber to replace my 10 gig cat 7 cable that was installed 2 years ago and in 5 years I would imagine that my IP will be offering 32 or 64 gig service to the home as 8k TV's start to be in the main stream of home entertainment and fiber network cards are in home computers..
Brilliant lection! Concise and well to congest. If you just had a little bit more repetition, e.g. wrap ups at the end of the sections, it would have been better to memorize all the terms, concepts and abbreviations.Wish you all the best!
It's crazy what we're capable of now, can't wait to see what we can do in the next 10 year when better engineering ideas are brought to the networking world. Can't wait for 10 Gig home internet lmao!
We use single mode fiber for everything. Maybe primarily because we are a FTTH provider but also because the cost of single mode tranceivers are very cheap these days and we do not want to work with more than one type of cabling. For 100G tranceivers there is a considerable cost saving for using multimode, but otherwise it is just not worth the hassle. Also OS2 fiber is actually cheaper than multimode, probably because of the amount used. While there surely is a lot of fiber used in the datacenter, the long distances in long hauls fiber networks and the expansive FTTH networks also quite a lot of fiber.
While you note that every speed bump in speed requires new different multimode fibre, where as single mode cable you put in 30 years ago is still good to go for all speeds. What you fail to note is that you should never using multimode for any sort of structured cabling because the extra cost of the single mode optics will be immediately recovered the moment you go to a faster speed and don't need to replace the fibre.
This is a high-grade classroom material video. This is better than people at university will teach you.
Thank you for watching!
Friends, we have to support these kinds of efforts. This channel is so informative and beautifully illustrated. I hope you all are learning as much as I do. Thanks!
Thank you so much 😀
Been working in a Data center for 10 years. I feel I've learned way more in this video than I have my whole time onsite. :/
Thanks for the comments, thanks for watching.
I was thinking the same exact same thing I wasn’t a dc tech but i was the sme for my team that worked with DC Team
OUSTANDING!! I am IMPRESSED. I've viewed LOTS OF RUclips tutorials over the years (literally hundreds),... and you are LIGHT YEARS AHEAD OF ALL OF THE OTHERS! (in my humble opinion) You speak "ENGLISH" and you are CLEARLY VERY KNOWLEDGEABLE AND VERY THOROUGH! Thank you sir! YOU ARE GIFT TO IT PROFESSIONALS!
Thank you for the kind words, we are working hard on doing a respectable job of presentation and at the same time engaging our viewers. We do make mistakes and our great viewers call us out, and we want that feedback. We hope you will come back for more!
As an Ops technician at a data center in Maryland I've got to say this was hands down the best video I've ever seen on the subject. Everything you mentioned and showed are exactly what I see and work with everyday.
Thank you!!! And thanks for watching and taking the time to comment.
This is by far one of the most underrated IT videos of all time. Incredible. If there was a tip button, I literally would've sent money. Thank you so much for sharing!!!
Thank you for the kind words, we hope you will come back!
It’s your lucky day because there is a tip button now!
AMAZING video!! Started in IT in '97 and in 30mins you succinctly and eloquently detailed what took me well over a decade to learn. Truly excellent work!!
Glad you enjoyed it!
I work for a major logistics company for Google. I see fiber cables, optical modules, network switches, etc. all day long. It was only after watching this video did I even begin to understand what this material was, how it is implemented, and what I had to understand if I wanted to work in the nearby Google data center. Thank you!
Thanks for the comment and for watching!
For all IT professionals out here reading the comments, this channel is a hidden gem 💎
Thank you for the kind words!
I'm going to say what most of the comments are saying. I've learned more in this video than I have researching google and blog posts for years. Fiber is one of those dark arts because of all the different types. But this video put it in a super easy format and explained everything. All in 30 minutes. Thank you.
Nonya, thanks for the comment. This is a subject that is difficult to find good information unless you work in this industry. We are working on bringing this information and understanding to more folks.
Mr V, am an IT student and this video was very resourceful. Well i have been watching these videos for IT knowledge
Welcome, this channel is for you!!
This is the best video I've seen on fiber optics.
Thank you for watching!
That is the very clearest and most informative introduction to fiber optics I have seen. Thank you very much for making it.
Glad it was helpful!
This video is the best education on fiber to have been publicly published. Great video. Great production.
Glad it was helpful!
Incredible overview, clear and to the point. I've pointed my coworkers to it. We had no idea that 400Gb/s is now possible.
Thanks for watching!
This video has helped me understand different types of optics and what they are used for. Thank you Lowell.
Glad to help
This is the best overview of fibre standards that I have found. It's just the information I needed for choosing equipment for my new house. Thanks.
Thanks for watching!
Overall this is a really informative video. Great for getting someone up to speed with fiber. One thing though, there is a difference between path loss and return loss. Path loss (including intrinsic losses) is the attenuation of the signal down the path between the transmitter and receiver. Return loss is the value of how much light is reflected back to the source. They are very different things. Great work. I look forward to watching more of your videos.
Thanks for the input and comments, it is always appreciated!
I’m astonished as to the amount of information I got from this video. Very informative and easy to follow. I admire your work
So glad you enjoyed and found it beneficial. Thanks for the comments and for watching.
100%, learned as much as a 3 day course to get fiber optic installer certified
Thanks for publishing this video. I hadn’t realised how far networking has advanced since I did a final year undergrad dissertation on ATM switches about 25 years ago! I feel all caught up now 😊 👍
Thanks for sharing!
I learned more here than I did in school. Thank you.
Thanks for watching!
The best video on fiber cables. this one video on finer cables/transceivers is more than enough to work in a data centre and crack interviews.
rk: there is much more to learn in working for data centers, storage fabric, TOR systems, VLANs, server management, routing within and without the data center, Software Define Networks, virtualization on Windows, Linux and VMware, SANs, cluster systems, WAN interfaces, and so much more! Thanks for watching!
Thank you for this detailed education. I have learned not to watch these videos on my tiny cell phone because I want to catch every piece of wording.
The videos are produced with a computer screen in mind, thanks for watching!
Awesome video as I am 14 and I want to be a network engineer when I grow up and there aren't many resources for me so this is amazing.
Welcome to TechSavvyProductions!!! Come back as often as you like!
Excellent video! I will be showing this to my entire team.
Thank you
Great video, thank you! 16:40 - Connector is verbally called "MT-JR" , despite being listed onscreen 2x as "MT-RJ". Just something I spotted :)
Thanks for the info!
this is really amazing! so comprehensive, made my understanding of the whole ecosystem so easy! Super effort by producer, really grateful!!
Thanks for watching!
Fantastic video, will have to play in slo-mo just to digest the knowledge shared. Many Many thanks
Glad you enjoyed it!
Hugely underrated channel, you deserve way more subscribers! Like others have said this channel has top-notch material.
Much appreciated!
Nice video Sir. One of my tutors gave me a downloaded version of this video 6 days ago. I just had to find you! This page is quite an asset. Kudos Sir.
Welcome aboard!
Tons of information in half an hour . So great . Thank you
Thanks for watching!
Small correction: a plenum is an air _circulation_ space. If air doesn't normally flow through it, it's not a plenum. The drop ceiling in most commercial structures is a plenum as it's the return path for HVAC systems. In residential settings, most setups have ducted returns. (In my parents house, the space under the stairs is a plenum as the return duct is open to the back of the stairs, vs. ducts run all the way to the registers. In my house, there are two large ducts leading to filtered registers, one in a wall, the other in a ceiling.)
Note: I had this very conversation with engineers, architects, and city inspectors w.r.t. a computer room ("data center"). We had to have revised plans _explicitly_ stating the area above the ceiling was NOT a plenum. Yes, HVAC ducts pass through the space, but there is no air moving in the space; the room is otherwise vapor sealed. (this was but one of the many nits picked with the city.)
Thanks for the comment and correction, I believe you are correct as I reflect.
Eccellent! Too many times I've had to argue with folks what a plenum is!
Amazing video! This has more information in single 30 videos, that dozen other videos and articles I saw before. Combined. Good job. This is the goto video on fiber optics. Very comprehensive.
Glad you enjoyed it!
I watched today other video of yours, when i was searching for fiber explanations i found your video, and immediately i thought: ohh this is going to be very detailed and explained. Aaaaand it was ;) Thank you so much for such great videos ! Thank god there are still people like you and make proper explanation rather than : 'fc , connectors in 1 minutes.. ' ;)
Glad it was helpful!
1 person is ungrateful for the information supplied ..very informative, thank you
Glad it was helpful!
Wish you all the health and happiness to continue your work and make more videos like this!
Thanks for the kind comments and for watching!
Finally a video that tells me what I needed to know! What fiber to pre-wire my new house with?... Looks like OM3 should work fine! I won't have anything even close to 100M.
Thanks for watching!
actually you would be well advised to use OS2 single mode cabling. That will allow you to move the signal from your FTTH connection to anywhere in the house and the extra cost of transceivers is trivial. Also OS2 is now cheaper than OM cabling of any grade.
That said, cat 6a is fine for housing. Just put in empty tubing so you can pull the fiber cable if you should ever need to do so.
This video explains well about fiber optic technology. Amazing thanks
Thanks for watching!
Very good video and I will watch it again for all that information to sink in, found your fire regulations interesting as we don't have the same here in NZ apart from the marine industry.
Glad it was helpful!
This is a fantastic video, balancing basic theory and standard implementations.
Glad you enjoyed it
So informative and clear with great use of graphics
Glad you liked it
Work work with number 5 ESS electronic switching systems that incorporated fiber optics for the very first time in communication that's the Baseline for the internet that's how it all started AT&T Bell Labs is responsible for all of that great company great career God Bless America
Central Offices are making a come back as they reinvent how to provide edge services to the mega-internet services. The CO was the heart of the telecommunication world for years.
Fantastic video! This video brings everything about fiber and LAN technologies together in an interesting and easy to understand method. I can't tell you how much I enjoyed the video. However, you misspoke at 6:06; 850nm is not a lower frequency, it is a lower wavelength but higher frequency than say 1300nm.
You are correct!!! Keep us honest! Thanks for the comment and for watching!
An invaluable video, thankyou for putting the time and effort in, it's much appreciated.
Glad you enjoyed it!
Thank you so much for sharing the knowledge. It's much appreciated for us beginners
Glad it was helpful!
Thank you. You are our Professor from afar! Love your content, Professor V!
Thank you for your comments and for watching!!
This is priceless, a very comprehensive overview.
Thank you for the comment!
This is amazing and such a good video, as a network engineer, I applaud you lol
Thanks for watching!
Regarding 40 Gigabit in the chart at 5:03, there is one additional option, beyond the singlemode and MTP/MPO options: 40GBASE-SR-BD (or 40GBASE-SR-BiDi, short for Bi-Directional) uses the same kind of two-strand multimode cable used with 10GBASE-SR, but gives you 40 Gigabit Ethernet.
With 40GBASE-SR4, you have an MTP/MPO-12 connector carrying 8 10Gbps wavelengths (four in each direction). With the 40GBASE-SR-BD, the transceiver combines the 10Gbps "lanes" into two 20Gbps lanes, sending each out over the two fiber strands. That's where the bi-directional part comes in: In each strand, you have 20Gbps wavelengths traveling in each direction.
Although the length limitations for 40GBASE-SR-BD are lower than those of 10GBASE-SR, this is a great way to upgrade from 10 Gigabit to 40 Gigabit without needing to replace fiber. That's probably why, if you order a 40GBASE-SR-BD transceiver today, it'll take several months to arrive!
See more details at community.fs.com/blog/bi-directional-qsfp-40gbe-over-lc-duplex-multimode-fiber.html
Thank you for your comments, I appreciate anyone that can add new information to this topic!
came in here just to get a crash course in fiber optics and got a phd. great presentation
Thanks for watching!!!!
This is great video! thanks for the Knowledge..
Glad it was helpful!
this is the primer I needed! Thank you so much
Glad I could help!
Super good prez at super pace. Thanks on the effort and the gift.
Glad you like it!
This is where the miney is at. Extremely interesting content thank you. You got a subscriber 😋
Awesome, thank you!
the very complete video. Very good job!! From Italy.
Benvenuto nel canale, grazie per il commento. I nostri cuori ai nostri amici dall'Italia sono aperti.
Great run through. Really helpful
Glad it helped!
Very comprehensive video! Thanks
Glad you enjoyed it!
Great video, thanks so much, I really learned a lot about Fiber Optics...
Glad it was helpful!
the best video on Fiber optics!
Glad you enjoyed it
Thanks so much for this valuable course, I learned a lot of things with it, much appreciated ;)
You're very welcome!
Thanks a lot for the great explanation , please keep posting new videos ,
Keep watching
Excellent content & presentation.
Glad you liked it!
Thanks for your professional explanation.
Glad it was helpful!
Great work Sir! ..... thanks from the heart.
Thanks for watching!!
Excellent video and super informative. Thank you!
Glad you enjoyed it!
Outstanding breakdown.. Amazing..
Thanks for watching!
Excellent Knowledge~Fiber Cable from your Video~~~~
Thanks for watching!
Outstanding video.
Thank you
Our pleasure!
Thank you very much sir. I am very happy that I revisited your old video on fiber optics and found this one.
Thanks for checking out the channel!
Thanks, great production, well prepared and delivered.
Glad you enjoyed it!
This is impressive work!!
Thanks for watching!
Very clear video for tutorials,keep up to create video for learners like me,i interested in communication update and upgrade,thanks sir.,...
Thanks for the comment and for watching!
SUPERB. Thank you very much sharing.
Thanks for watching!
gr8 PDF thanks........you have putted all infromation in 1 video 1 pdf that all i required....thanks
Most welcome 😊
Amazing video, thanks.
Thanks for watching!
This was state of the art 4 years ago, things have only gotten faster and better since then.. 8 color all the way up to 64 color stacking and 30 mile hops on fiber distribution are an every day thing.. Not sure what the distance is on the main trunks and backbones but it has to be huge because there are trans oceanic fiber cables now.. In 5 years I will upgrade my home network to fiber to replace my 10 gig cat 7 cable that was installed 2 years ago and in 5 years I would imagine that my IP will be offering 32 or 64 gig service to the home as 8k TV's start to be in the main stream of home entertainment and fiber network cards are in home computers..
Very true I need to update, technology is moving on! Thanks for the comment.
wow.. best video on fiber EVER!
Thanks for watching!
That was very informative, thanks
Glad it was helpful!
Brilliant lection! Concise and well to congest. If you just had a little bit more repetition, e.g. wrap ups at the end of the sections, it would have been better to memorize all the terms, concepts and abbreviations.Wish you all the best!
Thank you for the suggestion!!
It's crazy what we're capable of now, can't wait to see what we can do in the next 10 year when better engineering ideas are brought to the networking world. Can't wait for 10 Gig home internet lmao!
Thanks for watching
Great info. I'm glad I was recommend ti watch this
Glad you enjoyed it!
Thank a lot for this!
Thanks for watching!
Great video Sir
Thanks
You nailed that !
Thanks for watching!
Great video!! Much appreciated😀
My pleasure!
We use single mode fiber for everything. Maybe primarily because we are a FTTH provider but also because the cost of single mode tranceivers are very cheap these days and we do not want to work with more than one type of cabling. For 100G tranceivers there is a considerable cost saving for using multimode, but otherwise it is just not worth the hassle. Also OS2 fiber is actually cheaper than multimode, probably because of the amount used. While there surely is a lot of fiber used in the datacenter, the long distances in long hauls fiber networks and the expansive FTTH networks also quite a lot of fiber.
Thanks for the comments they are always appreciated!
So so good, thanks
Glad you like it!
Great Video Sir. Thanks
Thanks for watching!
I love this video very well put together
Thanks for watching!
great content
Thanks for watching!
Sir I really appreciate your help.
It's my pleasure
While you note that every speed bump in speed requires new different multimode fibre, where as single mode cable you put in 30 years ago is still good to go for all speeds. What you fail to note is that you should never using multimode for any sort of structured cabling because the extra cost of the single mode optics will be immediately recovered the moment you go to a faster speed and don't need to replace the fibre.
Jonathan, love the comments and concerns. Thanks for sharing this perspective! Thanks for watching.
good content...very informative
thanks for watching
just started working on racks
nice tutorial
Glad you liked it!
very nice... i am learning Adva now
Thanks for watching!
Great video!!! Thanks a lot.
Thanks for watching!
awesommmme explaination
Thank you for watching!
good video
Thank you John, I enjoyed this one. Thanks for watching.
Great job 👍 Sir, Thanks a ton 😚
Most welcome